Alway happy to offer my opinions for your consideration.

Quote Originally Posted by personified
Hello I have been trying to research more about LEDs and I keep running in to "Next Generation" and "5th Generation" as well as others.

Tried to do a search and found nothing to satisfy what the differences are.

You have to look under marketing.
Nth generation, 5 blades, "better" eggs, it's all very useful,
If, you have a snake, that squeaks.

I know there are some knowledgeable people out there who are making LEDs like Weezard and others that are just using them like Str8outtaweed.

Thanks for the props.

Do you know if 630nm is better than say 670nm? Is there a difference?

IMHO, yes, big difference in the bud cycle.

What is the best for the blue 400 or say 470nm?

That, ah dunno, tried royal blue, tried standard blue.
no obvious difference, to me.
If anyone here, really knows. Please, no be shy.

What about yellow and orange?

I have done very well without them. Your milage...

I am confused about lumens I have read that a Flowering plants need 10K of lumens per sqft. Yet the LEDs are not producing much lumens.

That's 10k of white light. The scale is weighted for human vision.

How can this be and produce?

Plants, can get by on 2 narrow bands of color.
Throw the rest of the spectrum away and you'll see that , in this case, less, really is more.

How can a 300w LED be equivalent to 100w HPS?
Um, what?!
In my experience it's more like a 1:2 ratio.
LEDs use about half the energy that HPS does for slightly better results.
But. If you do it right, led's can compete with sunlight! .
The key, is mental flexibility
LED farming is different!
I will repeat that;
Led farming is different!
Conventional methods do not do well!
But, once you learn it, it you will excel.
Seriously.
If you try to apply the old methods to led grows, results will be dissapointing.

They need more heat, less water, (much less), less food, better air circulation above and below.
They love CO2, even at lower temps.

Jus' my 2 cents.

Aloha, Y'all

Weezard